Grain-door puller



' 1,538,024 A. CHANDLER GRAIN noon FULLER May 19, 1925'.

Filed Jan. 21, 1925 Adalhert fi i a l er 0 Z WUMU EWQEE FMQE A TTORNE Y.

Patented May 19, 1925.

UNITED STATES:

PATENT OFFICE,

ADELBERT CHANDLER, OF'AAVONYDALE, MIssouRI.

GRAIN-noon FULLER.

Application filed January 21, 1925. scrial Nb. 3,760.

To all whom it may concern:

Be it known that I, ADELBERT CHANDLER, a citizen of the United States, residing at Avondale, in the county of Clay and State of Missouri, have invented certain new and useful Improvements in Grain-Door Pullers, of which the following is a complete specification. I

well known, and a recognized fact, that the removal of grain doors fromloaded grain cars is an exceedingly difficult job, espeoially where it is desired to remove the grain door without breaking or splitting the same and thus rendering ityalueless for future use. i I

A further object of this inventionis to provide a cheap and easily constructed means for carrying out its'purpose, and to provide a device which will be effective, strong, easy to operate and not likely to get outof order.

With these general objects in view, the invention will nowbe described by'reference to the accompanying drawing in which, Figure 1 is a side' elevation of the grain door puller showing it in position with a grain door and illustrating the means by which a lifting power is imparted thereto after the device is placed in position. I

Fig. 2 is atop p'lanxview of the grain door puller, the lifting chain being broken away for clearness. Q

Fig. 3 is an end view of the deviceshlowing the manually operable handle ande striking head of the door engaging means.

Fig. 4: is a view ofthe opposite end of the device and, i

Fig. 5 is an enlarged perspectivedetailed view of the bifurcatedend and roller of the operatingleven; 7 4 f Referring at'this time to'the drawings in detail wherein similar reference characters refer to like parts throughout the several views and wherein 6 is the well known door post of the ordinary box car door and 7 the grain door which bears thereagainst when the car is filled with grain.

shoulder 9 secures this It is always desired to remove these grain doors 7 from the cars withoutsplitting or breaking the same. I-Ieretofore an ordinary crow-bar :or'similar implement has been used for pryingthe doorout of position.

This invention contemplates the use of a highly desirable device for effectively removing these doors without mutilating the same. In-the preferred form, it 'consistsof a bar Shaving a shoulder 9 at its one end for engaging the-upper edge of the grain door. A depending flange lO'integral with grip against slipping by pressing against the back faceof the grain door 7 C Bar 11 positioned in vertical aline- ,ment belowvbar 8 is adapted toco-operate in the gripping of door 7 by'having a spur 12 at one end for engaging said door at a point adjacent the lower edgeand below shoulder 9. The'other end of bar 11 is provided with a strikingsurface 13 which may be used to force spur 12 into secureengagement with door 7. Bars8 and 11 are con;

nected by a pair:of forward links 1 1 which engageeach side ofsai'd bars and are pivotally 4 connectedi thereto by pintles 15 and 16.x Links 14 should bejconne'ctedlto bar 11 immediately behindspur'12 and to bar 8 at a point considerably farther back from shoulder 9. Therear I end of bar 8 should be closer to bar 11 than itsforward end, and must be pivotally'connected to bar '11 by a pairof links 17: "Theselinks 17 like forward links 14, pass on feither side of bars 8. and 11 and" are "pivotally connected thereto'by pintles 18 and 19, Links 17 extend: upwardly beyond their connectionto bar 8 to form-a bearing point 20 for operating; lever 21 having ahandle 22 by means of which the required pressure may be imparted to'theldevice when positioning the' same in gripping'engagementwith the grain door'Z. V

Lever 21 is angledfas shownin Fig. 1 to permit its forward end to"; engage 'barf8 through the means of roller 23 which is guided along the upper edge of bar 8 by depending integral walls '24; nngledlu s 25 and'26 forming a part of bar 81 and'lever 21 respectively, retain the proper'relation between said lever andsaid ban A 'pa'ir'of link members27 which are also pivotally mounted at their'lower' endsfupon' pintle 16 bear against transverse pintle 28 and a pass 'betweensaid pinf andslioulder 9 to a point above said shoulder Where they are connected by a pin 29 which is adapted to receive one end of a hoisting chain v.30, the other end of which is attached by yoke 81 to operating lever 21. This hoisting chain 30 is preferably provided with a series of larger links 32 which may be utilized for engaging the hook of any hoisting means.

Operation.

To operate the grain doorpuller, shoulder 9 and flange 10 are first placed in engagement'with the upper edge and back of grain door 7. Spur 12 .is then brought into engagement with the front face of the grain door and caused to positively grip thesame by a downward pressure on handle 22 and preferably also by striking surface 13 a sharp blow with a hammer. This action forces spur 12 into the graindoor. Operating lever '21 is now lifted up through the means of handle '22 or' chain 30 which causes roller :23 to move backwardly and downwardly along bar 8, thereby carrying the upper end of links 17 to the rear. Links 17 pivoted as they are at 18, will obviously have their lowermost end urged forwardly 'to maintain spur 12 to remain in engagement with door 7. The continued upward pressure either on'handle 22 or :that part of chain 30 conneeted to yoke 31, and because of the fact chain '30 connected -to point 29 has not as :yet been drawn tight, an inward pressure will 'be'brought .to bear along bar :8 and :through shoulder 9 to the upper edge of :grain doorw7. This thrust forces the 'top 'of graindoor? away from post6 and causes all partsfof chain 30 to tighten. Theend of -the doorlto which the pulleris applied is then raised the desired height which breaks Eloose-the opposite end of said door and perunits its :being :removed from the .car.

Havingthus described the invention, \Vllitli I claim is: I

1. A graindoor puller comprising, in .combination, means "for gripping one :edge of the graindoolfi means for engaging the surfaoe'of said door,-linksconnecting said gripping and engaging means, and means :for

receiving a liftingpower said engaging means having :a striking head whereby the same is caused to penetrate the surface of said grain door.

2. A gram door puller comprlslng, 1n combination, means for gripping the upper edge of the grain .door, means for engaging the surface of said door ad acent the bottom edge, toggle-links connecting said gripping and engaging means, and means forapply- .ing alifting power to said puller said upper edge gripping 'means having a widened shoulder and a depending flange for positive engagement with the upper edge and back of said grain-door.

3. A grain door puller comprising, in combination, means for gripping theupper edge of the grain door, means forengaging the surface of said door at a point below said upper edge, links connecting said gripping and engaging means, and an operating means pivotally mounted on one of said links and slidably engaging said gripping means, whereby the grip on said door maybe tightened.

4. A grain door puller comprising, in combination, means for gripping the upper edge of the grain door, said means having ade- 7 pending flange for hearing againstthe rear surface of said door, means for engaging the front surface of said door, links connecting said gripping and engaging means one of said links being mounted for uninterrupted .slidable engagement with said gripping means, and means for simultaner ously urging said gripping and engaging means into tighter engagement with said grain idoor.

'5. A grain door puller comprising, incombination,imeans for gripping the upper edge of'the grain door, said means having a dependingffiange for bearing against the rear surface of said door, means for engaging the front surface of said door including' a spur adapted to be forced into -said-door at a point below'and in vertical alinement with said gripping means, links connecting said ,gripping and engaging means one of said links having its one end .pivotally' mounted adjacent said spur, the other end thereof projecting beyond and slidablymounted between said upper edge gripping means and -a transverse pinrcarried thereby, 'and means for applying power 'to said links. a Y

6. In a grain-door puller,'means for simultaneously gripping the upper edge of the .grain door and'engaging the face thereof, means for maintaining said means in operative position comprising a lever having a portionithereofin substantially parallel 'relation to said upperedge engaging means, said lever and said engaging means having co- ,acting lugs in engagement with each "other, said maintaining means being adapted to increase the grip on said-dooras it is being dislodged by force exerted through said connecting said bars, and an operating lever pivotally carried by one :ofsaid links and adapted to ride over the upper surface of one .of said bars as the puller is being operated.

8. In a grain door ,puller, a pair of bars disposed at angles to each other and in the same vertical p1ane, gr1pp1ng means integral with each of said bars, links pivotally conneoting said bars in their angular relation and maintaining the same in spaced disconneoted relation to each other, and an operating arm pivotally supported by one of said links having means for maintaining said bars in their proper relation.

9. In a grain door puller, a pair of bars having gripping means integral therewith, links connecting said bars adjacent their ends, and an operating lever pivotally supported by the rear link, said operating lever having its forward end bifurcated and carrying a roller adapted to ride over the upper edge of one of said bars When force is being imparted to said grain door puller.

In testimony whereof I hereunto afiix my signature this 17 day of January, 1925.

ADELBERT CHANDLER. 

